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Finding the Fourth Proportional to 59.27, 81.65 and 55.94

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Solution

The fourth proportional to 59.27, 81.65 and 55.94 is: 77.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.27 : 81.65 = 55.94 : x
  2. Step 2: Convert to fraction form
    59.27/81.65 = 55.94/x
  3. Step 3: Cross multiply
    59.27x = 81.65 × 55.94
  4. Step 4: Simplify right side
    59.27x = 4,567.23
  5. Step 5: Solve for x
    x = 4,567.23/59.27
  6. Step 6: Final answer
    x = 77.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.